baber/WOPTO huggingface dataset:
Patent GB-613431-A (GB)
Title: Device for transforming direct current telegraphic signals into alternating current signals
IPC: H04L25/04
Filed: 1945-11-06
Abstract: 613,431. Code telegraphy. SOC. ANON DE TELECOMMUNICATIONS. Nov. 6, 1945, No. 29587. Convention date, Jan. 5, 1943. [Class 40 (iii)] A transmitting device for transforming direct current telegraphic signals into alternating current signals in which one of two current sources, one direct and one alternating, is connected to the output terminals through the medium of a circuit controlled by a relay, such as a switch or a modulator, controlled by the other source, comprises immediately after the source connected to the output terminals through the relay-controlled circuit, a voltagelimiting device so adjusted as to limit the maximum voltage transmitted to the circuit to the lowest value to which the voltage of the source may fall. In the arrangement shown in Fig. 1 in which D.C. impulses applied at terminals 1, 2 control a relay 3 so that alternating current from a source 7 is connected to the output terminals 8, 9, a voltage-limiting device 10 is connected between the oscillator 7 and the output terminals. In a modified arrangement, Fig. 2, the armature 15 of a relay 16 controlled by an oscillator 22 is connected to an input terminal 11 and associated contacts 20, 21 are connected to the primary winding 13 of a transformer 14. The mid-point of the winding is connected to the input terminal 12 and the voltage limiting device 23 is connected between the terminals 11, 12 and the primary of the transformer. Fig. 3 shows a modification of Fig. 2 in which double-current signals applied at terminals 31, 32 are adjusted by resistance 34 in conjunction with a milliammeter 33 before they are applied to the voltage-limiting device which comprises resistances 36, 37 in combination with dry rectifiers 38, 39, 40, 41 which limit the current flowing in one direction. The rectifiers 42, 43 prevent the flow of current in the opposite direction so that single current impulses are applied to a low-pass filter 44 which eliminates undesired frequency components arising from the " keying " operation. A band-pass filter 45 connected between the secondary winding of the transformer 14 and the output terminals 46, 47 is designed to eliminate harmonics of the frequency generated by the oscillator 22. The voltage-limiting device may comprise discharge tubes.
Patent GB-446092-A (GB)
Title: Improvements in pyrophoric igniters
IPC: F23Q2/06
Filed: 1934-10-16
Abstract: 446,092. Frictional igniters. ASPREY, K. M. F., 89, Wigmore Street, and CAMPBELL, A. H., 2, Hanway Place, Oxford Street, both in London. Oct. 16, 1934, No. 29601. [Class 75 (iii)] The friction-wheel 14 is connected by a one-way spring-pressed clutch pinion with a rack 26 on a spring-pressed operating slider 20 carrying a wick-cap 32, the parts with the wick-tube 19 being mounted in a removable metal container 13 in the top of a fuel receptacle 10 made of the material known by the Registered Trade Mark " Bakelite." The movements of the slider 20 are limited by a slot therein engaging a pin 23. The container 13 is closed by a metal cover (not shown), having a flame-emission aperture, air inlet openings being provided through the parts 10, 13. In the table lighter shown, the receptacle 10 is provided with feet 11 and recesses 21, 18 for the reception of the slider 20 and the screw-cap on the flint tube 17. As shown in Fig. 5, the one-way drive for the friction-wheel comprises a pinion 27 operated by the rack 26 and carrying face teeth 30 engaging, under the influence of a spring 28, with face ratchet teeth 29 on the friction-wheel. According to the Provisional Specification, the drive may be a pawl on the slider engaging a ratchet pinion connected to the friction-wheel. Reference has been directed by the Comptroller to British Specifications 138,395, [Class 75 (iii)], and 395,809, and U.S.A. Specifications 1,831,014, 1,859,908, and 1,966,914.
Patent GB-1468381-A (GB)
Title: Production of wood glue
IPC: C08G12/12
Filed: 1974-07-04
Abstract: 1468381 Preparing UF wood glues; chipboard BASF AG 4 July 1974 [6 July 1973] 29606/74 Headings C3R and C3N A UF wood glue is obtained by allowing an aqueous precondensate of urea and formaldehyde containing 45-55 wt. per cent of formaldehyde in the solution and having a U : F ratio of 1 : 2À5-4 to stand at a pH of 1-3 at room temperature up to 40 C. until the viscosity of the solution corresponds to one of 5000 cP./ 20 C. for the 85% solution, then adjusting the pH to 7-9 and adding urea to give a U : F ratio of 1 : 1À2-2. In examples a precondensate of U : F ratio 1 : 3À9 is brought to pH 2 with H 2 SO 4 , stood for 2-3 hrs. at 21-22 C.,brought to pH 7À5 with NaOH or a polyalkylene polyamine and stirred with urea and water to a U : F ratio of c. 1À37 and c. 66% solids. The solutions are diluted to 50% solids, 1% of NH 4 Cl is added, and the solutions sprayed on to dry wood chips, which are pressed at 165 C. for 4 mins. to form board.
Patent GB-770109-A (GB)
Title: Improvements in or relating to the production of coatings on metallic articles
Inventor: RAINSFORTH RONALD
IPC: C23C10/12
Filed: 1954-10-14
Abstract: Metal articles, in particular ferrous articles, are coated with chromium by a halide diffusion process in which the articles are packed in the lower part of a sealed container together with porous ceramic material impregnated with a chromium halide, and chromium in the metallic or alloy form, the two latter being out of contact with the article being coated.  The container is filled with a non-oxidizing gas of low density (e.g. hydrogen) at atmospheric pressure or slightly higher.  A perforated structure is provided for the article to preserve it from contact with the other materials and is placed towards the bottom of the container, to which the heavy vapours of the halide gravitate.  The top of the container is preferably kept at a low temperature to assist this gravitation. Temperatures of 1100 DEG C. and over are used in the process.
Patent GB-226941-A (GB)
Title: Improvements in or relating to drilling machines
IPC: B23B45/06
Filed: 1923-11-24
Abstract: 226,941. Boothroyd, H. Nov. 24, 1923. Drilling.-In a drilling-machine of the kind having a ratchet-wheel feathered on a feed-screw and intermittently rotated by a lever-operated cam, the relative positions of the pawl and ratchetwheel are adjustable to vary the feed and the wheel may be disengaged from the pawl to stop the feed automatically. The vertical position of the ratchet-wheel f relatively to the pawl a may be varied by means of an adjustable spring plunger i which is depressed when an adjustable collar g on the feed-screw forces the wheel out of engagement with the pawl. The collar may be replaced by a projection on the hand-wheel m. The pawl is pivoted to a lever b oscillated by a cam c and a spring j, its position relatively to the ratchet-wheel being limited by a stop e which may be adjustable to vary the feed.
Patent GB-408346-A (GB)
Title: Improvements in and relating to suit and like cases combined with trousers and like garment presses
IPC: A45C13/03
Filed: 1932-10-24
Abstract: 408,346. Cases combined with trouser presses &c. SAXON, R., Southolt, Balcombe Road, Horley, Surrey. Oct. 24, 1932, No. 29660. [Class 18.] A suit or other case combined with a trousers or other garment press comprises an internal leaf or board A to which pressure is applied by closing the hinged lid D of the case or a hinged member in the case, the pressure being transmitted to the garment or a portion thereof disposed between the leaf A and the adjacent inner face B of the case or of a baseboard provided therein. The adjacent faces of the lid D or hinged member and the leaf A may be provided with rigid or resilient abutments F, E and the baseboard, when provided, may be supported in a rigid or resilient manner. The leaf, hinged member and baseboard may each take the form of two or more independent parts thus allowing the application of local or progressive pressure on the garment and means for stretching the garment may be provided.
Patent GB-1171837-A (GB)
Title: Carbon Felt Assembly fot Thermal Insulation and Method for Its Manufacture.
IPC: D01F9/16
Filed: 1967-06-27
Abstract: 1,171,837. Non-woven carbon laminate. SOC. LE CARBONE LORRAINE. 27 June, 1967 [26 July, 1966; 23 Feb., 1967], No. 29684/67. Heading B5N. [Also in Divisions C1, F1 and F3] A carbon felt assembly for thermal insulation is made from layers of pure viscose rayon felt cemented together with a carbonizable thermosetting resin such as a furanic resin and then curing and carbonizing the assembly. The carbon felt may then be graphitized and it may be reinforced by impregnation with pyrolytic carbon. The assembly may be shaped by machining or milling. An example describes the preparation of a tubular sleeve. In a modification, cement is applied in dots to previously carbonized felt.
Patent GB-324072-A (GB)
Title: Improvements in or relating to camera shutters
IPC: G03B9/08
Filed: 1928-10-15
Abstract: 324,072. Graseby, R. C. Oct. 15, 1928. Shutters with pivoting blades.-A camera shutter for making a series of exposures comprises two spring. or gravity-controlled pivoted and apertured blades 3 and 4 arranged so that their apertures register with the lens aperture 2 when one blade 3 is' in one extreme pivotal position and the other blade 4 is in the other extreme pivotal position; and means, such as a cam 20 engaging stops 13 and 17 on the blades 4 and 3 respectively, for repeatedly moving the blades together about their pivot and releasing first the blade 4 to bring the apertures into register and then the blade 3 to end the exposure. A plate 15, pivoted at 16 and secured by a thumb screw 18, carries the pin 17 and enables the relative times of release of the blades to be adjusted. The blades have straight edges 23 which engage the straight-edged stop 8.
Patent GB-742393-A (GB)
Title: Improvements in or relating to the formation of continuous filamentary tows
Inventor: BREARLEY NORMAN
IPC: D01D5/08
Filed: 1952-11-25
Abstract: <PICT:0742393/IV(a)/1> In forming a tow of total denier 5000 or more from filaments of a melt-spun synthetic linear polymer, a plurality of filaments soon after extrusion but after solidification are led together and fed into a compacting device comprising two coacting pressure rollers which form them into a lightly cohering tow such that the filaments are separable on subsequent processing.  In the illustrated example a number of bundles of 100 3-denier freshly extruded nylon filaments are cooled by air in the normal way and, after passing through a convergence guide, each filament bundle passes through a steam conditioner tube and then over a finish-applying roll, and is then led with other bundles to form a tow of denier at least 5000.  The tow, while still in a somewhat plastic condition, is then led through a funnel guide to a compacting device comprising two 6 inch diameter rollers 1 of hardened steel which are driven so as to pull a tow between them at linear speeds up to 3000 ft/min. or more.  The pressure exerted by the rollers 1 must be of the order of 50 lb.  On the underside of the nip of the rollers are two scraper blades 3, the upper end portions of which are urged by coil springs 5 into contact with the rollers so as to form a throat 7 and ensure the removal of the tow from the rollers and its delivery into a slowly revolving can. The blades 3, the tips 9 of which may be of copper, are adjustable for the angle at which they impinge on the rollers, for the distance from the nip of the rollers at which they impinge, and for the pressure which they exert against the roller surfaces. For these purposes, the blades are pivoted on eccentric end portions 11 of rods 13 mounted in shaped side plates 15, so that by rotating rods 13, the angle of the blades and the positions of contact of their tips on the rolls 1 can be adjusted. The pressure of the blade tips on the rolls 1 is adjusted by inserting the rods 17 connected to springs 5 in any one of the vertically spaced retaining slots 19 in the side plates 15.  Each spinning machine is preferably provided with two compacting devices arranged for alternate operation in order that spinning may be continuous.  The process enables the stretching and crimping of the tows to be carried out continuously by joining the leading end of one tow to the trailing end of another.  Specification 742,398, [Group IX], is referred to.
Patent GB-674029-A (GB)
Title: Improvements in mining machines
IPC: E21C29/02
Filed: 1947-11-10
Abstract: 674,029. Planer mining-machines. MAVOR & COULSON, Ltd., and TOWLER, J. M. Jan. 24, 1950. [Nov. 10, 1947] No. 29825/47. Class 68 (i). In a double or single wedge-ended planer, the cutter heads are mounted on a frame 17, 18, 23, 24 that slidably supports a carriage 27 containing the cylinder 19 of the double-acting propulsion apparatus the piston rod 20 of which abuts but is not connected to the frame. A pad 39 is provided on the side of the cutter head 14 facing the seam adjacent each cutter 12 which is pivotally mounted on the head, the cutter being laterally angularly adjustable with respect to the pad. Specification 674,028 is referred to.
Patent GB-769923-A (GB)
Title: Improvements in or relating to the packaging of sausages or the like
Inventor: ANDERSON ALFRED MONTAGUE
IPC: B65D71/00
Filed: 1954-10-18
Abstract: 769,923. Packaging. EXCEL CO., Ltd. June 10, 1955 [Oct. 18, 1954], No. 29877/54. Class 94(1). Sausages or other soft articles 12 are placed centrally on a scored cardboard blank comprising a base panel 3, side panels 4, 5 and straps 6, 7 formed with tongues 10, 11. The side panels are then erected and the straps are folded over the top of the sausages and their tongues interlocked. The assembly is then wrapped in transparent material.
Patent GB-693966-A (GB)
Title: Improvements in or relating to the production of sulphur-bearing alcohols
Filed: 1949-11-22
Abstract: Sulphur-containing alcohols are made by condensing a tertiary alkyl or aralkyl mercaptan with more than one mol. of a hydrocarbon-substituted ethylene oxide at an elevated temperature in the presence of a mercaptide of an alkali or alkaline earth metal; the products have the formula <FORM:0693966/IV (b)/1> where R1-R3 are alkyl, aryl or aralkyl, R4-R7 are hydrogen, alkyl, alkenyl, aryl or aralkyl (not all hydrogen) and n is two or more; the condensation is carried out in the absence of water, alcohol and other contaminants which would yield products other than those of the above formula. The process is preferably carried out at superatmospheric pressure at 100-200 DEG  C., especially 120-130 DEG  C. The value of n in the product depends on the temperature and pressure as well as on the proportions of the reactants. Mixtures of olefine oxides may be used. The reactants are dried before use.  The mercaptide catalyst (e.g. sodium, potassium, lithium or calcium) is made by reacting the metal with the mercaptan in liquid ammonia and evaporating the latter. Alternatively, the sodium and potassium compounds may be made by dissolving the metal or its amide directly in the mercaptan.  In the examples: (1) t.-octyl mercaptan (from di-isobutylene and hydrogen sulphide with boron fluoride) is treated with sodium in liquid ammonia and the latter evaporated; the resulting mercaptide is mixed with a further quantity of the same mercaptan and reacted with propylene oxide; (2) as in (1) using butadiene monoxide; (3) as in (1) using styrene oxide; the product may be substituted in the aromatic nucleus, e.g. by sulphonation; (4) sodium is dissolved in 1 : 1 : 3 : 3 : 5 : 5-hexamethyl-hexyl mercaptan and the resulting solution reacted with propylene oxide; (5) as in (2) using t.-hexadecyl mercaptan, from tetraisobutylene and hydrogen sulphide with boron fluoride.  In general, the mercaptan used preferably has 6-20 carbon atoms and the product has up to 30 (desirably 20) ether linkages.  Specification 637,295 is referred to.  According to the Provisional Specification there may be used as catalysts alcoholates and hydroxides, in the presence of water, if desired.ALSO:Insecticidal compositions include as toxicants sulphur-containing alcohols of the formula <FORM:0693966/VI/1> where R1-R3 are alkyl, aryl or aralkyl, R4-R7 are hydrogen, alkyl, alkenyl, aryl or aralkyl (not all hydrogen) and n is two or more; the groups within the brackets may not all be the same.  The compounds may be used in conjunction with liquid or solid carriers, fillers or volatile solvents.  In the compounds n may be up to 30, but preferably up to 20.  Specified compounds are the reaction products of (1) t-octyl mercaptan and propylene oxide, (2) t-octyl mercaptan and butadiene monoxide, (3) t-octyl mercaptan and styrene oxide, (4) t-dodecyl mercaptan and propylene oxide and (4) t-hexadecyl mercaptan and propylene oxide.  Specification 637,295 is referred to.
Patent GB-492003-A (GB)
Title: Toothed wheel change speed gear
IPC: F16H3/089
Filed: 1937-11-02
Abstract: 492,003. Change - speed gearing. BAYERISCHE MOTOREN WERKE AKT.- GES. Nov. 2, 1937, No. 29994. Convention date, April 27. [Class 80 (ii)] Change-speed gearing, particularly for motorvehicles, providing three forward speeds and one overdrive, between a driving shaft 6 and a parallel driven shaft 1, includes an overdrive pair 5, 4.located adjacent the lowest speed pair 31, 3, these two ratios being controlled respectively by a claw-sleeve 7 splined on the driving shaft 1, and a claw-sleeve 10 splined on the loosely-mounted driving sleeve of a free-wheel clutch 13, on which sleeve the low-speed pinion 3 is freely mounted and through which it imparts a unidirectional drive to the driven shaft 1 when clutched by the claw sleeve 10. The claw sleeves 7, 10 have an interlocking tongue and groove 7<1>, 9, so that they always move axially together and are controlled by a common fork. Second- and third-speed pairs 14, 17 and 15, 18 are controlled by frictionally synchronized claw-clutches 16. By virtue of the free-wheel 13 in low-speed, the gear can, if traffic conditions necessitate the vehicle being brought almost to a stop, be changed directly from any ratio to the lowest ratio after merely closing the engine-throttle and without mainclutch manipulation, so that the vehicle is prepared for the subsequent get-away in lowest speed.
Patent GB-935365-A (GB)
Title: Improvements in the manufacture of sausages and the like
IPC: A22C11/02
Filed: 1960-09-01
Abstract: Sausage or other meat is extruded through a nozzle the inner surface of which is not enough, e.g. at 60 DEG  to 70 DEG C., to melt the fat in the meat adjacent it and maintain it molten.  A nozzle having a surrounding heater or heating jacket slidable along it is described.ALSO:In the manufacture of sausages &c., meat is extruded through a nozzle, the inner surface of which is hot enough, e.g. at 60 DEG  to 70 DEG  C., to melt the fat in the meat immediately adjacent it, and maintain it molten.  A nozzle having a surrounding heater or heating jacket slidable along it is described.
Patent GB-391818-A (GB)
Title: Improvements in or relating to winches
IPC: B66D1/48
Filed: 1931-11-02
Abstract: 391,818. Control of D.C. motors. BENSON CORPORATION, M. B., 175, Varick Street, New York, U.S.A.-(Assignees of Benson, M. B.; 175, Varick Street, New York, U.S.A.) Nov. 2, 1931, No. 30307. Convention date, Nov. 12. 1930. [Class 38 (iii).] In a mooring winch for ships of the kind in which the mooring lines are heaved in or payed out automatically when the tension on the line is reduced or increased bevond predetermined limits, a power transmission system is provided which includes two intermeshing gears having different numbers of teeth, one of which traverses the periphery of the other and is prevented from rotating by means connected to the frame of the winch and provided with springs for cushioning against shocks in each direction. The electric motor 2, Fig. 2, through a gear 11 drives a gear 10 which is formed with an eccentric 9 on which is mounted loosely a gear 8. This gear engages a gear 6 having internal teeth 7 which is secured to the winding drum 1. The gear 8 is prevented from rotating by uprights 12 which engage guides 13 on it and are pivoted to a reciprocatable rod 14 mounted in the frame by the movement of which the motor 2 is controlled and reversed. The uprights normally are maintained in the central position by springs 18, 19, but-are-moved back and forth as the tension of the lines varies. When the tension varies sufficiently in either direction a finger 24 on the rod 14 actuates one of the movable contacts 21, 23 of pairs of reversing contacts 21, 22 ; 22, 23 and the motor is started or stopped. These contacts' are carried by a movable device, e.g. a fork 25, which may be set in position to maintain the tension within desired limits by a lever 28 through link mechanism. The contacts control solenoids 44, 45, respectively, which operate pairs of switches 46, 47 ; 48, 49 for connecting the motor in circuit and for reversing it. The starting resistance 50 is cut out in steps automatically by solenoids 51 which are connected in circuit successively by contacts 52 under the control of a solenoid 53 connected across the armature 2 and resistance 50. A solenoid 54 in series with the armature controls the circuit of the solenoid 53, and a solenoid 55 automatically connects a resistance 56 across the armature circuit when the switches 47, 49 controlling contacts 57 are open. An auxiliary hand control of the circuits for the solenoids 44, 45 may be provided. In a modification the rotationrestraining means is in the form of an elongated lever, one end of which is secured to the gear 8,. and the other end of which is held yieldingly and arranged to actuate the motor control.
Patent GB-1014019-A (GB)
Title: Process for the preparation of thermoplastic-elastic moulding compositions
IPC: C08F279/04
Filed: 1964-08-04
Abstract: Thermoplastic moulding compositions are made containing (a) 5 to 50% by weight of butadiene polymer, (b) 25 to 85% by weight of styrene or a derivative thereof and (c) 10 to 47% by weight of acrylonitrile or a derivative thereof, by polymerizing 5 to 95 parts by weight of styrene and/or acrylonitrile from the 50 to 95 parts contained in 100 parts of polymer in the presence of the butadiene polymer latex, the polymerization being initiated in not more than 30% by weight of the total emulsion of butadiene polymer and graft monomers, while the remaining 70% of the emulsion are continually at a rate corresponding to the rate of polymerization, and then adding 0 to 90 parts by weight of a styrene-acrylonitrile copolymer to the resulting graft polymer. Butadiene polymers specified are polybutadiene and copolymers of butadiene with styrene, acrylonitrile, acrylates, methacrylates and isoprene.  Preferred latices are those of polybutadiene having average particle sizes below 0.4 microns.  The polymerization is carried out in the presence of peroxy catalysts.
Patent GB-1058309-A (GB)
Title: Improvements in or relating to cyclopropane carboxylic acid esters
IPC: C07D207/444
Filed: 1964-08-04
Abstract: The invention comprises compounds of formula <FORM:1058309/C2/1> wherein R is Me- or MeO2C- and n is 0, 1 or 2; these compounds are prepared by known methods of ester synthesis.  They may be stabilized for storage purposes by the presence of up to 1 wt. per cent 2-tert.-butyl-4-methoxy-phenol containing 4-tert.-butyl isomer; 2,6-di-tert.-butyl - 4 - cresol; or bis(2 - hydroxy - 3 - tert.-butyl-5-methylphenol) or its analogue in which 11-methylcyclohexyl replaces tert.-butyl.ALSO:Insecticidal compositions contain compounds of formula:  <FORM:1058309/A5-A6/1> wherein R is Me- or MeO2C- and n is O, 1 or 2; they may take the form of oil solutions, emulsifiable concentrates, wettable powders, dusts, aerosols, mosquito coils and insect baits.  The compositions may contain also other insecticides such as pyrethrin, allethrin, O O-dimethyl-O-(3-methyl-4-nitrophenyl) thiophosphate, "Malathion" (Registered Trade Mark), diazinone, dimethoate and gamma- BHC, as well as pyrethroide synergists, e.g. piperonyl butoxide or sulphoxide, or 2-butoxy-2\sv-thiocyarodiethyl ether.